Hey Guys,
Yes, that one fits a Z1. I created the custom order for the first Z1 invisible shield about 2 months ago and I've informed them that the picture they have posted is of a N3. It is indeed scratch-proof and it also has a lifetime warranty. It takes less than a minute to install and I don't notice mine on anymore.
I'd recomment one for anyone that has a compustar remote. I have mine on my keychain and the keys constantly get at the screen but there is no damage at all!
Cheers,
RChan11